RM1200 Operation
General
The following instructions present operating procedures specific to the RM1200 option for the
RM125 and RM125R. It is assumed that the operator is familiar with the common MICOM-3
operating procedures, as described in the “Owner’s Guide, MICOM-3E/3T/3R HF-SSB Transceivers”,
Publication 6886867J01, and the applicable MICOM-3 Supplements that cover optional features.
Preparations for Operation
1. Set the REMOTE CONTROL switch on the rear panel of the RM125/RM125R to the OFF
(down) position.
2. For the RM125R, set the internal speaker switch to ON (up).
Equipment Turn-On
1. Apply power to the RM125/RM125R by setting its AC power switch to ON (up).
2. Set the AC power switch on the PS unit to ON, and monitor its indications. The expected
indications, as well as what to do if a problem is detected, are described in Table 9.
3. Turn the RM125/RM125R ON/OFF switch and volume control clockwise and adjust for a
comfortable listening level.
4. The 1 kW amplifier is also turned on. Monitor its power-up indications. The expected
indications, as well as what to do if a problem is detected, are described in Table 9.
5. If necessary, select the prescribed channel and operating mode of the RM125/RM125R. Make
sure that the RM125/RM125R is programmed to use the 1 kW amplifier (you should see
AMP
on the
PROG>RAD>OPTS>ACC
menu).
Table 9. RM1200 Power-up Indications
Unit
Expected Indication
What to do if not …
AC ON indicator lights
Check that AC power is available, and that
the PS unit is properly connected to the AC
distribution panel
PS Unit
OUT 1 and OUT 2 indicators light.
NG 1 and NG2 indicators off
The PS unit requires service.
Turn the PS unit off: do not attempt to
continue using the 1 kW amplifier until the
problem is corrected. You can still transmit
and receive using the RM125/RM125R
(maximum transmit power – 125W) by
selecting
NONE
on the
PROG>RAD>OPTS>ACC
menu.
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6888882V02
